Experimentation and personalization · November 2026 Edition
VWO vs Optimizely CMS
Seven of fourteen models named VWO first on the direct prompt; one named Optimizely CMS. Both were named by all fourteen models and VWO carries 65 labels and Optimizely CMS 61, so the shares are not directly comparable.
Named in two categories this edition.
By Optimizely, San Francisco, United States, founded 2010. Named in six categories this edition.
First-choice share31%5%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate14%46%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#5A position in a field of 14; printed, not drawn.
Labels6561A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, VWO reading right to left. Rank and label count are printed, not drawn.VWO vs Convert Experiences · VWO vs GrowthBook · VWO vs Personyze
Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the experimentation and personalization page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
VWOFirst choices, of fourteen modelsOptimizely CMS
Direct716 against Optimizely CMS
Paraphrase814 against Optimizely CMS
Comparative49
Budget-constrained103 against VWO · 6 against Optimizely CMS
Scale-constrained312 against Optimizely CMS
Negative006 against VWO · 10 against Optimizely CMS
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.
Across every category in the November 2026 Edition, VWO and Optimizely CMS were named in the same answer 132 times, of the 167 answers naming VWO and the 259 naming Optimizely CMS. In those answers Optimizely CMS took the first choice twenty-two times and VWO thirty-one.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where VWO and Optimizely CMS stood in it.
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | | | | | |
| GPT-5.4 mini | | | | | ||
| Gemini 3.5 Flash | | | | | | |
| Perplexity Sonar | | | | | | |
| Grok 4.20 | | | | | | |
| Mistral Small | | | | |||
| DeepSeek V4 Flash | | | | | | |
| Llama 4 Maverick | | | ||||
| Qwen 3.7 Flash | | | | | | |
| Kimi K2 | | | | | | |
| GLM 4.7 FlashX | | | | | ||
| MiniMax M2.5 | | | | | | |
| GPT-6 Luna | | | | | ||
| Muse Glimmer 30B | | | | | |
VWO Optimizely CMS first choice named as an alternative argued againstblank: not namedEach cell is one answer, VWO on the left and Optimizely CMS on the right.The direct prompt
The plain question, one answer per model, grouped by where VWO and Optimizely CMS stood in it.
VWO first, Optimizely CMS an alternative
7 of 14 modelsOptimizely CMS was named in the answer but not as the choice, or not at all.Claude Haiku 4.5VWO alternatives: Mutiny, Personyze
Gemini 3.5 FlashVWO alternatives: AB Tasty, HubSpot Marketing Hub, Kameleoon
DeepSeek V4 FlashConvert Experiences, VWO alternatives: Mutiny, Personyze
Qwen 3.7 FlashVWO alternatives: Convert Experiences, Mutiny
Kimi K2VWO alternatives: Mutiny, Personyze
GPT-6 LunaVWO alternatives: AB Tasty
Muse Glimmer 30BVWO alternatives: Convert Experiences, Mutiny, Optimizely CMS, Personyze
Optimizely CMS first, VWO an alternative
1 of 14 modelsVWO was named in the answer but not as the choice, or not at all.GPT-5.4 miniOptimizely CMS alternatives: Adobe Target, Dynamic Yield, VWO
Neither was the first choice, one was named
5 of 14 modelsThe answer put something else first and named one of the two as an alternative.Perplexity SonarHubSpot Content Hub alternatives: Abmatic AI, Croct, Mutiny, VWO, Webflow Optimize
Grok 4.20Croct alternatives: AB Tasty, Kameleoon, VWO
Mistral SmallHubSpot Content Hub alternatives: Optimizely CMS, Personyze, VWO
GLM 4.7 FlashXPersonyze alternatives: HubSpot Content Hub, Optimizely CMS, Right Message, VWO
MiniMax M2.5Personyze alternatives: Convert Experiences, VWO
Neither was named
1 of 14 modelsThe answer made no first choice from these two in this category.Llama 4 MaverickHubSpot Content Hub
Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.
By buyer segment
The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
VWO leads by twenty-five points.
VWO28%#1 of 16Optimizely CMS3%#10 of 16Mid-marketThe figures above
Enterprise
The order flips: Optimizely CMS leads at enterprise.
Optimizely CMS48%#1 of 13VWO2%#7 of 13What the models said about VWO
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“Avoid VWO if page speed and user trust are critical, or if you have limited technical support.” GLM 4.7 FlashX · negative prompt · hard negative
“the reliability and support issues make it risky for serious experimentation” DeepSeek V4 Flash · negative prompt · hard negative
“its current pricing page directs buyers to request a demo rather than showing a price, so it may be harder to budget for upfront” GPT-6 Luna · budget prompt · soft negative
“platforms like VWO or Optimizely are commonly considered in this middle market, depending on whether you prioritize faster time-to-value (VWO)” Claude Haiku 4.5 · scale prompt · first choice
“The Best All-Rounder: VWO (Visual Website Optimizer) ... widely considered the best balance of power and usability for mid-sized companies” Qwen 3.7 Flash · paraphrase prompt · first choice
“Tight budget, marketer-led, low traffic, needs CRM bucketing: Convert Experiences or VWO Experience Optimization.” Muse Glimmer 30B · paraphrase prompt · first choice
What the models said about Optimizely CMS
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“you should exercise significant caution with Optimizely, particularly regarding its cost structure, support quality, and technical performance” Qwen 3.7 Flash · negative prompt · hard negative
“Avoid beginning with Optimizely, Adobe Target, Kameleoon, or AB Tasty unless the company has enterprise-level requirements and budget” Perplexity Sonar · budget prompt · hard negative
“Avoid for Mid-Sized B2B (unless budget is large): Optimizely — median spend is ~$81K/year” DeepSeek V4 Flash · paraphrase prompt · hard negative
“Optimizely is among the most common "default shortlists" for companies seeking rigorous testing, large-scale collaboration, and a mature measurement stack.” Claude Haiku 4.5 · comparative prompt · first choice
“Optimizely is described as an industry-leading experimentation platform that enables businesses to test and optimize digital experiences” Muse Glimmer 30B · comparative prompt · first choice
“Choose Optimizely if you want a large enterprise suite with strong experimentation + personalization + analytics integration.” GPT-5.4 mini · comparative prompt · first choice
Also compared
VWO vs Convert ExperiencesVWO vs GrowthBookVWO vs PersonyzeVWO vs PostHogVWO vs AB TastyVWO vs MutinyConvert Experiences vs Optimizely CMSGrowthBook vs Optimizely CMSPersonyze vs Optimizely CMSOptimizely CMS vs PostHogOptimizely CMS vs AB TastyOptimizely CMS vs MutinyAll twenty-eight head-to-head pages and the full experimentation standing
Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.